Automatic inspection device for high-voltage cable

Abstract

The invention relates to a high-voltage cable automatic inspection device which comprises a first inspection assembly and a second inspection assembly, the first inspection assembly and the second inspection assembly each comprise a rotating shell, and a connecting rod is connected between the first inspection assembly and the second inspection assembly; each of the first inspection assembly and the second inspection assembly further comprises an adjusting box arranged on the outer side of the rotating shell; the positioning hook is arranged on the adjusting box; the overturning driving set is arranged on the adjusting box, and the output end of the overturning driving set is connected with the rotating shell so that the rotating shell can rotate relative to the adjusting box and drive the connecting rod to overturn to the required position; the driving end of the first positioning driving group is in transmission connection with the positioning hook, so that the positioning hook gets close to or away from the adjusting box; the second positioning driving group enables the positioning hook to be switched between the overturning direction and wrapping the cable and the cable unwrapping direction and the overturning direction and departing from the cable; and the moving assembly is arranged at the positioning hook, so that the positioning hook moves relative to the cable. According to the invention, the problem that the existing inspection device is difficult to cross the spacer to inspect during use can be solved.

Description

Technical Field

[0001] This invention relates to the field of cable inspection technology, and in particular to an automatic inspection device for high-voltage cables. Background Technology

[0002] High-voltage cables, as critical channels for power transmission, are constantly increasing in length and quantity. These cables are widely distributed across various complex geographical environments, bearing not only their own mechanical loads and long-term electrical loads, but also facing severe challenges from the natural environment and external forces. Therefore, regular maintenance of these high-voltage cables is necessary to ensure stable power transmission. Traditional high-voltage cable inspection methods rely primarily on manual labor, which is extremely labor-intensive and inefficient, especially in areas with complex terrain and poor transportation, significantly increasing the difficulty and danger for inspection personnel.

[0003] To overcome the shortcomings of manual inspection, some auxiliary inspection methods have emerged. For example, using drones for aerial inspection can improve inspection efficiency, but this method has limited endurance and is greatly affected by weather conditions, unable to operate normally in inclement weather. Some equipment also performs inspections by moving along cables, but existing inspection equipment can generally only move along one set of cables, making it difficult to flexibly switch positions between multiple sets of cables during use. Furthermore, to prevent tangling between multiple sets of long cables running side by side, conductor spacers are often installed in the middle of the cables to fix them. Existing equipment cannot easily move across these spacers, requiring frequent use of drones to change the equipment's installation position, which greatly reduces inspection efficiency. Summary of the Invention

[0004] This invention provides an automatic inspection device for high-voltage cables, which solves the problem that existing automatic inspection devices for high-voltage cables are difficult to use to flexibly switch detection positions between multiple groups of cables and to perform inspections across spacers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic inspection device for high-voltage cables includes a first inspection component and a second inspection component. Both the first inspection component and the second inspection component include a rotating shell, and a connecting rod is connected between the two rotating shells. Both the first inspection component and the second inspection component further include: The regulating box is located on the outside of the rotating shell; A positioning hook is located on the side of the adjustment box away from the rotating shell, and is used to cover and detect the cable; A flip drive assembly is located in the adjustment box, and its output end is connected to the rotating shell so that the rotating shell rotates relative to the adjustment box and drives the connecting rod to flip to the required position so that the first inspection component and the second inspection component flip over the spacer bar. The first positioning drive group is located in the adjustment box, and its drive end is connected to the positioning hook for transmission, so that the positioning hook moves closer to or further away from the adjustment box during the flipping of the connecting rod, thereby adjusting the distance between the positioning hook and the cable. The second positioning drive group is located in the adjustment box so that when the first inspection component and the second inspection component are performing normal inspections, the positioning hook faces and wraps the cable, or during the flipping of the connecting rod, the positioning hook switches between flipping to face and wrap the cable and unwrapping the cable and flipping away from the cable. A movable component is provided at the positioning hook to allow the positioning hook to move relative to the cable after the positioning hook wraps around the cable.

[0006] Preferably, the inspection device further includes an adjusting component disposed within one of the rotating housings. The adjusting component includes a third rotating component, a third driving wheel, and a third external gear ring. The third driving wheel is disposed on the output shaft of the third rotating component. The third external gear ring is rotatably disposed on the outer periphery of the connecting rod. The third driving wheel meshes with the third external gear ring. The connecting rod is provided with a guide groove along its axial direction. A guide block is provided on the inner sidewall of the third external gear ring. The guide block is disposed in the guide groove. The connecting rods are all threadedly connected to the rotating shells within the first inspection assembly and the second inspection assembly.

[0007] Preferably, the flipping drive assembly includes a first rotating component, a first main gear, and a first internal gear ring; The first rotating component is fixedly disposed on the outer wall of the regulating box, the first main gear is disposed on the output shaft of the first rotating component, and the first internal gear ring is disposed on the end face of the rotating shell near the regulating box. The first main gear and the first internal gear ring mesh with each other.

[0008] Preferably, the first positioning drive group includes a sliding box and a first drive member, and the second positioning drive group is disposed in the sliding box; The sliding box is slidably disposed inside the adjusting box, and the first driving member is fixedly disposed inside the sliding box. The driving end of the first driving member extends out of the sliding box and connects to the inner side wall of the adjusting box, so as to drive the sliding box and the positioning hook to move closer to or away from the rotating shell.

[0009] Preferably, the second positioning drive assembly includes a second rotating member, a fixed shaft, a second driving wheel, and a second external gear ring; The second rotating component is fixedly disposed inside the sliding box, and part of the fixed shaft is rotatably disposed inside the sliding box. The part near the positioning hook passes through the sliding box and is fixedly connected to the positioning hook. The second driving wheel is disposed at the output end of the second rotating component. The second external toothed ring is located inside the adjusting box and is fixedly sleeved on the outer periphery of the fixed shaft. The second driving wheel meshes with the second external toothed ring.

[0010] Preferably, the positioning hook includes a first arc-shaped plate and a second arc-shaped plate, and the inner sidewalls of both the first arc-shaped plate and the second arc-shaped plate are provided with detection elements; The end of the first arc-shaped plate near the adjustment box is fixedly connected to the fixed shaft. An arc-shaped groove is provided at the end of the first arc-shaped plate away from the adjustment box. The second arc-shaped plate is slidably disposed in the arc-shaped groove. An elastic rope is also provided at the bottom of the arc-shaped groove, and the elastic rope is connected to the second arc-shaped plate. The end face of the sliding box near the rotating shell forms a first hydraulic cavity with the inner side wall of the adjusting box. The first hydraulic cavity contains hydraulic oil. The second positioning drive group also includes a hydraulic component. The sliding box is provided with a mounting cavity. The hydraulic component is located in the mounting cavity. The hydraulic component has a push plate. The push plate is slidably and sealed in the mounting cavity. The end face of the push plate away from the hydraulic component forms a second hydraulic cavity with the side wall of the mounting cavity. The second hydraulic cavity is connected to the first hydraulic cavity. The sliding box is provided with an oil guide shaft. One end of the oil guide shaft is connected to the first hydraulic chamber, and the other end is rotatably connected to the fixed shaft. The oil guide shaft is connected to the arc-shaped groove through the first oil hole provided in the fixed shaft.

[0011] Preferably, the moving component includes a drive wheel, a drive shaft, and a second drive member, wherein the drive wheel has a recess that abuts against the cable; The first arc-shaped plate has a mounting hole at its end near the adjustment box. The drive shaft is located in the mounting hole, and the drive wheel is located on the drive shaft. The second drive component is connected to the drive shaft so that the drive wheel rotates and drives the positioning hook to move along the cable.

[0012] Preferably, the drive wheel is rotatably mounted on the drive shaft, the mounting hole has an arc-shaped swing groove on the two hole walls along the axial direction of the drive shaft, the two ends of the drive shaft are provided with swing plates, and the two swing plates are respectively sealed and slid in the two swing grooves in the vertical direction; A magnetic attraction element is provided on the upper wall of the swing groove near the sliding box, and a metal block corresponding to the magnetic attraction element is provided on the upper end of the swing plate. A second oil hole is provided in the swing groove near the sliding box, and the second oil hole communicates with the first oil hole. A third oil hole is provided in the drive shaft. A fourth oil hole is provided in the swing groove away from the sliding box, and the fourth oil hole communicates with the arc-shaped groove. When the recess of the drive wheel is not in contact with the cable, the magnetic attractor attracts the metal block, the swing plate is in an inclined state, and the second oil hole, the third oil hole and the fourth oil hole are not connected; When the recess of the drive wheel abuts against the cable, the drive wheel is in a horizontal position, so that the second oil hole, the third oil hole and the fourth oil hole are connected. The hydraulic component drives the push plate to make the second hydraulic chamber smaller, and the hydraulic oil enters the arc-shaped groove, driving the second arc-shaped plate to slide out and cooperate with the first arc-shaped plate to wrap the cable.

[0013] Preferably, the second driving member includes a fourth rotating member, a fourth driving wheel, and a fourth external gear ring. The fourth rotating member is disposed inside the driving wheel, and the output shaft of the fourth rotating member passes through the outer side wall of the driving wheel and is connected to the fourth driving wheel. The fourth external gear ring is sleeved on the driving shaft, and the fourth driving wheel meshes with the fourth external gear ring.

[0014] Preferably, a pressure detection element is provided on the upper wall of the swing groove away from the sliding box, so that when the concave sidewall of the drive wheel is detected to be in contact with the cable, the swing plate abuts against the pressure detection element, the first drive unit stops working, the hydraulic component drives the push plate to move toward the rotating shell, and the volume of the second hydraulic chamber decreases.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By controlling the extension, retraction, and rotation of the positioning hooks on both sides through the positioning component, the cable can be positioned and fixed, and the cable can be wrapped for detection. This improves the stability and accuracy of detection during movement. By adjusting the rotation state of the connecting rod relative to the rotating shell through the adjustment component, one rotating shell can rotate relative to the other rotating shell to the desired position. Through the alternating rotation of the two rotating shells, the other rotating shell is driven to rotate, ultimately realizing the function of crossing the spacer bar and adjusting the position of the cable. This improves the equipment's passability and inspection efficiency. The equipment operates stably and can perform crossing and cross-cable movement operations, greatly improving the equipment's practicality and effectively increasing the efficiency of detection. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the inspection device in an embodiment of the present invention; Figure 2 This is a schematic diagram of the first and second inspection components installed on four cables in the inspection device of an embodiment of the present invention. Figure 3 This is a schematic diagram of the flipping process of the first inspection component and the second inspection component in an embodiment of the present invention; Figure 4 Examples of embodiments of the present invention Figure 3 Enlarged diagram of A in the middle; Figure 5 This is a schematic diagram of the adjusting component in an embodiment of the present invention; Figure 6 This is a partial cross-sectional view of the first inspection component in an embodiment of the present invention; Figure 7 Examples of embodiments of the present invention Figure 6 Enlarged diagram of B in the diagram; Figure 8 Examples of embodiments of the present invention Figure 6 Enlarged diagram of C in the middle; Figure 9 This is a schematic diagram of the sliding box and positioning hook in an embodiment of the present invention; Figure 10 Examples of embodiments of the present invention Figure 9 An enlarged schematic diagram of D in the diagram.

[0018] Explanation of reference numerals in the attached figures: 1. First inspection component; 11. Rotating housing; 12. Adjustment box; 13. Positioning hook; 131. First arc-shaped plate; 1311. Arc-shaped groove; 1312. Swing plate; 1313. Swing groove; 132. Second arc-shaped plate; 133. Pressure detection component; 134. Second oil hole; 135. Fourth oil hole; 136. Elastic rope; 137. Magnetic suction component; 14. Moving component; 141. Drive wheel; 142. Drive shaft; 143. Fourth drive wheel; 144. Fourth external gear ring; 15. Adjustment component; 151. Third rotating component; 152. Third drive wheel; 153. Third external gear ring; 154. Guide block; 16. Tilting drive assembly; 161. First rotating component; 162. First main gear; 163. First internal gear ring; 17. First positioning drive assembly; 171. Sliding box; 172. First drive component; 18. Second positioning drive assembly; 181. Second rotating component; 182. Fixed shaft; 183. Second drive wheel; 184. Second external gear ring; 185. Hydraulic component; 1851. Push plate; 186. First hydraulic chamber; 187. Second hydraulic chamber; 188. Oil guide shaft; 2. Second inspection assembly; 3. Connecting rod; 31. Guide groove; 4. Cable; 5. Spacer bar. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] This invention provides an automatic inspection device for high-voltage cables, such as... Figure 1 As shown, it specifically includes a first inspection component 1, a second inspection component 2, and a connecting rod 3. Specifically, both the first inspection component 1 and the second inspection component 2 include a rotating shell 11. The rotating shell 11 in the first inspection component 1 and the rotating shell 11 in the second inspection component 2 are connected by the connecting rod 3 so that the first inspection component 1 and the second inspection component 2 form a whole. Both the first inspection component 1 and the second inspection component 2 can be mounted on the cable 4, and they are mounted on different cables respectively, thereby forming mutual support. With their mutual cooperation, the cables are inspected.

[0023] Specifically, such as Figure 1-3As shown, the first inspection component 1 and the second inspection component 2 have the same structure, both including an adjustment box 12, a positioning hook 13, and a moving component 14. In this embodiment, the structure of the first inspection component 1 is specifically described: there are two adjustment boxes 12, two positioning hooks 13, and two moving components 14. The two adjustment boxes 12 are distributed on both sides of the rotating shell 11, the two positioning hooks 13 are respectively distributed on the outside of the two adjustment boxes 12, and the two moving components 14 are respectively located at the two positioning hooks 13. That is, each side of the rotating shell 11 is provided with an adjustment box 12, a positioning hook 13, and a moving component 14. The adjustment box 12 is provided with a flip drive group 16, which is connected to the rotating shell 11 in a transmission manner, and the rotating shell 11 is rotatably connected to the adjustment box 12. Thus, during the flipping process of the connecting rod, that is, when the inspection device needs to cross the spacer bar 5, the flip drive group 16 can drive the rotating shell 11 to rotate relative to the adjustment box 12, thereby driving the connecting rod 3 connected to the rotating shell 11 to flip to the required position. Through the continuous flipping of the connecting rod 3, the inspection device can achieve the desired position. Finally, the first inspection component 1 and the second inspection component 2 are flipped to the other side of the spacer bar 5. Each adjustment box 12 is provided with a first positioning drive group 17 and a second positioning drive group 18. The drive ends in the first positioning drive group 17 and the second positioning drive group 18 are connected to the positioning hook 13. The first positioning drive group 17 can make the positioning hook 13 approach or move away from the adjustment box 12 so that the positioning hook 13 will not collide with the cable 4 when it flips with the connecting rod 3. The second positioning drive group 18 can make the positioning hook 13 flip to face and wrap the cable 4, and can also make the positioning hook 13 no longer wrap the cable 4 and flip away from the positioning hook 13. At the same time, after the positioning hook 13 wraps the cable 4 and during the normal inspection process of the device, it can be used to detect the condition of the cable 4. The moving component 14 is installed on the positioning hook 13 and is used to move the positioning hook 13 relative to the cable 4 after the positioning hook 13 wraps the cable 4, that is, when the entire inspection device can work normally, thereby driving the entire first inspection component 1 to move on the cable 4 to perform automatic inspection work. It is important to know that the structure of the second inspection component 2 is the same as that of the first inspection component 1. It also contains a second positioning drive group 18 and a tilting drive group 16. The operating methods of the rotating housing 11, adjusting box 12, positioning hook 13, and moving component 14 within both are identical. It is also important to know that the axis of the connecting rod 3 is perpendicular to the distribution direction of the adjusting boxes 12 on both sides of the rotating housing 11, thus ensuring a relatively reasonable distribution of the components within both the first inspection component 1 and the second inspection component 2.

[0024] In existing technology, multiple cables 4 are typically reinforced with spacers 5 to prevent them from tangling. Spacers 5 generally have four fixing feet to fix the positions of the four cables 4. Two cables 4 are grouped together and arranged parallel to each other, with the two groups of cables 4 positioned vertically. Therefore, in this embodiment, both the first inspection component 1 and the second inspection component 2 include two positioning hooks 13 for detecting the four cables 4. Figure 2 As shown, during normal use, the two positioning hooks 13 of the first inspection component 1 respectively wrap around the two upper cables 4, and the two positioning hooks 13 of the second inspection component 2 are used to wrap around the two lower cables 4. Driven by the moving component 14 on the positioning hooks 13, the four positioning hooks 13 move correspondingly on the four cables 4, thus causing the first inspection component 1 and the second inspection component 2 to move on the cables 4. The condition of the cables 4 is then detected by the detection element to perform cable inspection. When encountering the spacer bar 5, the positioning hooks 13 of the second inspection component 2 first... The cable 4 is no longer wrapped, and then it is flipped to the outside of the cable 4. Under the action of the first positioning drive group 17, the entire positioning hook 13 is brought close to the rotating shell 11. Then, the flipping drive group 16 in the first inspection component 1 is activated, causing the rotating shell 11 to rotate relative to the adjustment box 12, driving the connecting rod 3 to rotate 270 degrees. This directly causes the second inspection component 2 to cross the spacer 5 and rotate to the two cables 4 above on the other side of the spacer 5. Then, the two positioning hooks 13 inside flip downward and wrap around the two cables 4 above. At this time, the first inspection component 1 and the second inspection component 2 are as follows: Figure 2 As shown, the positioning hook 13 in the first inspection component 1 is then de-wrapped in the cable 4 and flipped to face away from the cable 4. Under the action of the second positioning drive group 18, the entire positioning hook 13 approaches the rotating shell 11. Then, the flipping drive group 16 in the second inspection component 2 is activated, causing the rotating shell 11 to rotate relative to the adjustment box 12, driving the connecting rod 3 to rotate 180 degrees. This causes the first inspection component 1 to rotate to the two cables 4 above the other side of the spacer bar 5. For convenience, the first inspection component 1 still inspects the two cables 4 above, and the second inspection component 2 still inspects the two cables 4 below. This causes the positioning hook 13 in the first inspection component 1 to... 3. Flip and wrap the hook 13 around the two upper cables 4. Then, the positioning hook 13 of the second inspection component 2 is no longer wrapped around the cable 4 and is flipped to face away from the cable 4 and upward. Under the action of the first positioning drive group 17, the entire positioning hook 13 is brought close to the rotating shell 11. Then, the flipping drive group 16 in the first inspection component 1 is activated, causing the rotating shell 11 to rotate relative to the adjustment box 12, driving the connecting rod 3 to continue rotating 270 degrees. This causes the second inspection component 2 to rotate to the two lower cables 4 on the other side of the spacer bar 5, and the positioning hook 13 faces and wraps around the two lower cables 4. Thus, the entire inspection device crosses the spacer bar 5 and can continue the inspection work.

[0025] The positioning hook 13 has a notch, through which the cable 4 can enter. After entering, the notch of the positioning hook 13 closes, enclosing the cable 4. Specifically, the operation process of the positioning hook 13 enclosing the cable 4 after either the first inspection component 1 or the second inspection component 2 is as follows: First, the first positioning drive group 17 is activated, causing the positioning hook 13 to move away from the adjustment box 12, so that it moves to the outside of the cable 4. Then, the flipping drive group 16 drives the positioning hook 13 to flip at a certain angle, so that the notch of the positioning hook 13 faces downward. (Here, as the first inspection component 1 or the second inspection component 2 rotates to different positions, the flipping angle of the positioning hook 13 is different, which can be 90 degrees or 180 degrees, but both can be set in advance to ensure that the positioning hook 13 is in a certain position.) (At different stages, it can be flipped to the correct angle, so that it is vertically downward), and then the first positioning drive group 17 is activated, so that the positioning hook 13 moves towards the adjustment box 12, and finally the positioning hook 13 moves to the cable 4. The cable 4 enters the positioning hook 13 through the notch of the positioning hook 13. The second positioning drive group 18 is activated again to close the notch of the positioning hook 13 and wrap the cable 4, thus completing the operation of wrapping the cable 4 after the positioning hook 13 is rotated. It should also be noted that when the inspection device is inspecting the cable 4, the cable 4 is fixed by the spacer 5, so the distance between two parallel cables 4 is known. It is only necessary to adjust the distance that the first positioning drive group 17 drives the positioning hook 13 away from the rotating shell 11 and the distance that it moves towards the positioning shell.

[0026] Of course, the two positioning hooks 13 of the first inspection component 1 and the two positioning hooks 13 of the second inspection component 2 in this inspection device can also be located only on the upper cable 4. The first inspection component 1 and the second inspection component 2 are set one in front of the other, and only the two upper cables 4 are inspected. When the spacer bar 5 is encountered, the second inspection component 2 only needs to be rotated 180 degrees to pass over and be fixed on the cable 4, and then the first inspection component 1 needs to be rotated 180 degrees to pass over and be fixed on the cable 4. This way, the positions of the first inspection component 1 and the second inspection component 2 do not change, and the inspection can continue after passing the spacer bar 5.

[0027] In summary, this embodiment uses a first inspection component 1 and a second inspection component 2 connected by a connecting rod 3 to form an inspection device. Each inspection component consists of an adjustment box 12, a positioning hook 13, a moving component 14, a second positioning drive group 18, a first positioning drive group 17, and a flipping drive group 16, which work together to perform inspections across the spacer bar 5. Furthermore, the first inspection component 1 and the second inspection component 2 can rotate relative to each other via the connecting rod 3, thereby adjusting the detection positions of the first inspection component 1 and the second inspection component 2 among multiple sets of cables 4 to meet usage requirements.

[0028] Specifically, the inspection device also includes an adjusting member 15 inside one of the rotating housings 11, as described in this embodiment. Figure 5 As shown, the adjusting component 15 is located at the rotating shell 11 inside the first inspection component 1. The adjusting component 15 can drive the connecting component to rotate, so that the first inspection component 1 and the second inspection component 2 move closer or further apart along the axial direction of the connecting rod 3. This allows the first inspection component 1 or the second inspection component 2 to move closer together when they rotate relative to each other, thus reducing the radius of rotation. Consequently, the span of the first inspection component 1 or the second inspection component 2 on the cable 4 is smaller after rotation, so that the entire inspection device can continuously inspect the cable 4, preventing a large portion of the cable 4 on both sides of the spacer bar 5 from being uninspected after the inspection device passes the spacer bar 5.

[0029] Specifically, in this embodiment, the adjusting component 15 includes a third rotating component 151, a third driving wheel 152, and a third external gear ring 153. The third rotating component 151 can be a rotating motor. The third driving wheel 152 is installed on the output shaft of the third rotating component 151. The third external gear ring 153 is installed on the outer periphery of the connecting rod 3. The rotating housing 11 is provided with a mounting groove coaxial with the connecting shaft. The outer end of the third external gear ring 153 is located in the mounting groove so that the position of the third external gear ring 153 relative to the rotating housing 11 does not change. The third driving wheel 152 meshes with the third external gear ring 153. The connecting rod 3 is provided with a guide groove 31 along its axial direction. The inner sidewall of the third external gear ring 153 is provided with a guide block 154. The guide block 154 is installed in the guide groove 31. At the same time, the connecting rod 3 is threadedly connected to the rotating housing 11 in the first inspection component 1 and the second inspection component 2. That is, the rotating housing 11 is provided with an internal thread, and the connecting rod 3 is provided with an external thread. The working process is as follows: the third rotating component 151 can drive the third drive wheel 152 to rotate, the third drive wheel 152 drives the third external gear ring 153 to rotate, and the third external gear ring 153 drives the connecting rod 3 to rotate through the cooperation of the guide block 154 and the guide groove 31. When the rotating shell 11 in the first inspection component 1 is fixed to the cable 4 by the positioning hook 13, the rotating shell 11 in the second inspection component 2 and its whole will move closer to or away from the first inspection component 1 along the connecting rod 3. Therefore, when flipping the second inspection component 2, the adjusting component 15 is activated first, so that the second inspection component 2 moves closer to the first inspection component 1 along the connecting rod 3, and then the rotation radius of the second inspection component 2 is reduced. When both the first inspection component 1 and the second inspection component 2 have passed the spacer 5 and are in the required position, the third rotating component 151 in the adjusting component 15 is activated, so that the second inspection component 2 moves away from the first inspection component 1 along the connecting rod 3 to a fixed distance. Then the positioning hook 13 of the second inspection component 2 is fixed to the cable 4.

[0030] Specifically, in this embodiment, such as Figure 4 , Figure 6 , Figure 7 As shown, the tilting drive assembly 16 includes a first rotating component 161, a first main gear 162, and a first internal gear ring 163. The first rotating component 161 is fixedly mounted on the outer wall of the adjusting box 12. The first main gear 162 is mounted on the output shaft of the first rotating component 161. The first internal gear ring 163 is mounted on the end face of the rotating housing 11 near the adjusting box 12. The first main gear 162 and the first internal gear ring 163 mesh with each other. Since the end face of the adjusting box 12 near the rotating housing 11 is rotatably connected to the rotating housing 11, the first rotating component 161 can rotate through the first main gear 162 and the first internal gear ring 163. The transmission of the internal gear ring 163 causes the rotating shell 11 to rotate relative to the adjusting box 12, thereby causing the connecting rod 3 to rotate, and through the connecting rod 3, causing another rotating shell 11 to rotate relative to this rotating shell 11. For example, during the rotation of the second inspection component 2, the positioning hook 13 inside the first inspection component 1 is still wrapped around the cable 4, so the adjusting box 12 is also fixed relative to the positioning hook 13. The rotating shell 11 can naturally rotate relative to the adjusting box 12 under the drive of the first rotating component 161, and through the connecting rod 3, it drives the rotating shell 11 and its entirety inside the second inspection component 2 to rotate. The first rotating component 161 can be a rotating motor or a combination of a rotating motor and a reduction gearbox, and it can also be recessed and machined with internal teeth on the end face of the rotating shell 11 near the adjusting box 12 to form the first internal gear ring 163.

[0031] Specifically, such as Figure 5 , Figure 6 , Figure 9 As shown, the first positioning drive group 17 includes a sliding box 171 and a first drive member 172. The sliding box 171 is slidably installed inside the adjustment box 12, and the first drive member 172 is fixedly installed on the sliding box 171. The drive end of the first drive member 172 is connected to the inner side wall of the adjustment box 12. The second positioning drive group 18 is installed as a whole on the sliding box 171. The first drive member 172 is set as a linear drive member, which can be a push rod motor. When the first drive member 172 moves, it can drive the sliding box 171 to slide inside the adjustment box 12, and then drive the second positioning drive group 18 on the sliding box 171 to drive the positioning hook 13 to move closer to or closer to the adjustment box 12, thereby adjusting the distance between the two positioning hooks 13 on both sides of the same rotating shell 11, making the linear adjustment of the positioning hook 13 relatively simple and convenient. Of course, in another embodiment, the main body of the first driving member 172 is placed inside the adjustment box 12, and the driving end of the first driving member 172 is fixedly connected to the sliding box 171, which can also realize the linear movement of the sliding box 171. However, compared with the embodiment in which the main body of the first driving member 172 is installed on the sliding box 171, the mounting cavity of the adjustment box 12 will be relatively larger, thereby increasing the volume of the inspection component.

[0032] Specifically, such as Figure 9 and Figure 10As shown, the second positioning drive group 18 includes a second rotating component 181, a fixed shaft 182, a second driving wheel 183, and a second external gear ring 184. The second rotating component 181 can be a rotating motor. The second rotating component 181 is fixedly installed in the sliding box 171. Part of the fixed shaft 182 is rotatably disposed in the sliding box 171, and the part near the positioning hook 13 extends out of the sliding box 171 and is fixedly connected to the positioning hook 13. The second driving wheel 183 is installed at the output end of the second rotating component 181. The second external gear ring 184 is located in the sliding box 171 and is fixedly installed on the outer periphery of the fixed shaft 182. The second driving wheel 183 meshes with the second external gear ring 184, so that the second rotating component 181 can drive the entire positioning hook 13 to rotate around the axis of the fixed shaft 182 through the second driving wheel 183, the second external gear ring 184, and the fixed shaft 182, so that the positioning hook 13 rotates to the cable 4 or to the outside of the cable 4, so as to avoid interference with the cable 4.

[0033] Specifically, such as Figure 8 and 9As shown, the positioning hook 13 includes a first arc-shaped plate 131 and a second arc-shaped plate 132. The end of the first arc-shaped plate 131 near the adjusting box 12 is connected to the driving end of the second driving member. An arc-shaped groove 1311 is formed at the end of the first arc-shaped plate 131 away from the adjusting box 12. The second arc-shaped plate 132 is slidably disposed in the arc-shaped groove 1311, which can close the arc-shaped groove 1311. The second positioning drive assembly 18 also includes a hydraulic component 185. The sliding box 171 slides in a sealed manner inside the adjusting box 12. A first hydraulic fluid is formed between the end of the sealed box near the rotating shell 11 and the inner wall of the adjusting box 12. The pressure chamber 186 and the sliding box 171 have an installation cavity. A hydraulic component 185 is installed in the installation cavity, where the hydraulic component 185 can be an electric push rod. A push plate 1851 inside the electric push rod is slidably sealed within the installation cavity. The push plate 1851 divides the second hydraulic chamber 187 into an adjustment cavity and a second hydraulic chamber 187. The second hydraulic chamber 187 communicates with the first hydraulic chamber 186. The second hydraulic chamber 187 can be changed by moving the push plate 1851 inside the electric push rod. Of course, the volume of the first hydraulic chamber 186 can be adjusted by the first driving component 172, which drives the adjustment box 12. The volume changes due to the position, thereby controlling the discharge or suction of hydraulic oil in the second hydraulic chamber 187 and the first hydraulic chamber 186. Specifically, an oil guide shaft 188 is provided in the sliding box 171. The oil guide shaft 188 and the fixed shaft 182 are coaxially arranged, and the oil guide shaft 188 is closer to the rotating housing 11 than the fixed shaft 182. One end of the oil guide shaft 188 extends out of the sliding box 171 and communicates with the first hydraulic chamber 186, while the other end is rotatably connected to the fixed shaft 182. The fixed shaft 182 has a first oil hole, and the first hydraulic chamber 186 can pass through the first oil hole and the second oil hole 13. 4. The hydraulic oil in the hydraulic cavity is discharged into the arc-shaped groove 1311 under the action of the first driving component 172 and the hydraulic component 185. This allows the second arc-shaped plate 132 in the arc-shaped groove 1311 to slide out and cooperate with the first arc-shaped plate 131 to cover the cable 4. Specifically, an elastic rope 136 is also provided at the bottom of the arc-shaped groove 1311. The elastic rope 136 is connected to the second arc-shaped plate 132, so that after the hydraulic oil in the arc-shaped groove 1311 is discharged, the second arc-shaped plate 132 can be retracted into the arc-shaped groove 1311 under the action of the elastic rope 136. It should be noted that the inner cavity of the sliding box 171, which houses the second rotating component 181, the fixed shaft 182, the second driving wheel 183, and the second external gear ring 184, is not connected to the first hydraulic cavity 186. The first hydraulic cavity 186 and the second hydraulic cavity 187 are in a sealed state when there is no oil supply or suction.

[0034] The working process of hydraulic component 185 is as follows: When the first driving component 172 moves the entire positioning hook 13 towards the rotating shell 11, the adjusting box 12 moves, causing the volume of the first hydraulic chamber 186 to decrease. Simultaneously, it drives hydraulic component 185 to move, causing its inner push plate 1851 to move away from the rotating shell 11, thus increasing the volume of the second hydraulic chamber 187 to balance the first hydraulic chamber 186, allowing the adjusting box 12 to move stably towards the rotating shell 11. When the first driving component 172 moves the entire positioning hook 13 away from the rotating shell 11, the adjusting box 12 moves, causing the volume of the first hydraulic chamber 186 to increase. Simultaneously, it drives hydraulic component 185 to move, causing its inner push plate 1851 to move away from the rotating shell 11, thus increasing the volume of the second hydraulic chamber 187. The push plate 1851 moves toward the rotating housing 11, reducing the volume of the second hydraulic chamber 187 to balance the first hydraulic chamber 186, ultimately filling the entire hydraulic chamber with hydraulic oil. When the positioning hook 13 is located at the cable 4, the first drive component 172 stops moving and the hydraulic chamber needs to discharge hydraulic oil, the hydraulic component 185 moves, causing the push plate 1851 to move toward the rotating housing 11, reducing the volume of the second hydraulic chamber 187. As a result, the hydraulic oil is discharged from the first hydraulic chamber 186 through the oil guide shaft 188 and the first oil hole, and finally discharged into the arc groove 1311. The arc plate is driven by the hydraulic oil to move to the outside of the arc groove 1311 and cooperates with the first arc plate 131 to wrap the cable 4.

[0035] Both the first arc-shaped plate 131 and the second arc-shaped plate 132 are equipped with detection elements, which are evenly distributed on them. This allows the detection elements to be distributed circumferentially around the cable 4 when the second arc-shaped plate 132 slides out of the arc-shaped groove 1311 and cooperates with the first arc-shaped plate 131 to wrap around the cable 4, enabling more thorough detection of the cable 4. The detection elements can be a combination of various existing detection components to obtain a detection device. For example, temperature detection can use an infrared temperature sensor to measure the cable surface temperature non-contactly and accurately detect localized overheating (such as abnormal temperatures caused by joint failure or insulation aging); voltage detection can use a capacitively coupled voltage sensor to sense the voltage difference between the cable and the sensor. Capacitive coupling effect enables non-contact measurement of cable voltage (especially suitable for 10kV and above high-voltage cables), without the need to break the cable; high-frequency current sensors (HFCT) can be used to detect insulation damage / partial discharge, which locate insulation defects by sensing the high-frequency current leaked when the cable's outer sheath is damaged. The detection distance can cover 2-5 cm, requiring close proximity to the cable but without contact; ultrasonic sensors can capture ultrasonic signals generated by insulation damage or partial discharge to locate fault points non-contactly; visual / physical damage detection can be performed using miniature vision sensors with macro lenses to capture images of the cable's outer wall at a distance of 2-5 cm, and algorithms can be used to identify physical damage such as cracks, wear, and corrosion.

[0036] Specifically, such as Figure 9As shown, the moving component 14 includes a drive wheel 141, a drive shaft 142, and a second drive member. The drive wheel 141 has a recess that abuts against the cable 4. The sidewall of the recess is arc-shaped and matches the outer sidewall of the cable 4. The end of the first arc-shaped plate 131 near the adjustment box 12 is provided with a mounting hole. The drive shaft 142 is rotatably disposed in the mounting hole. The drive wheel 141 is mounted on the drive shaft 142. The second drive member is connected to the drive shaft 142 for transmission. Thus, the second drive member can drive the drive wheel 141 to rotate through the drive shaft 142. The friction between the recess of the drive wheel 141 and the cable 4 is used to drive the positioning hook 13 to move along the cable 4, thereby driving the entire inspection component and inspection device to move on the cable 4 for inspection. Here, the axial direction of the drive shaft 142 is parallel to the sliding direction of the sliding box 171, and the drive wheel 141 is mounted on the drive shaft 142, so that the axial direction of the drive wheel 141 is distributed in the same direction as the adjustment box 12 and its inner sliding box 171, so that the drive wheel 141 is not tilted, which would increase the volume of the entire inspection assembly and make the structure more compact.

[0037] Specifically, such as Figure 8As shown, the drive wheel 141 is rotatably mounted on the drive shaft 142. The mounting holes along the axial direction of the drive shaft 142 have arc-shaped swing grooves 1313 on their two hole walls. Swing plates 1312 are provided at both ends of the drive shaft 142. Both swing plates 1312 slide vertically within the two swing grooves 1313. Here, "vertical" refers to the position of the drive wheel 141 above the cable 4 after contact with it. Since the swing grooves 1313 are vertically positioned, during the contact process between the drive wheel 141 and the cable 4, the swing grooves at both ends of the drive wheel 141 will correspondingly swing. 1313 slides vertically within the swing groove 1313. When the cable 4 moves to the recess of the drive wheel 141, the drive wheel 141 swings to a horizontal position. During the rotation of the drive wheel 141, the drive plate may still swing slightly. However, the drive wheel 141 and the swing plate 1312 are provided on both sides of the same rotating shell 11, which can limit and counterbalance each other. Finally, the two drive wheels 141 can stably move along the cable 4. Here, the swing groove 1313 is arc-shaped, and the corresponding arc-shaped plate is also arc-shaped, which can completely ensure the seal between the arc plate and the groove wall of the arc groove 1311.Specifically, a magnetic attractor 137, which can be a permanent magnet, is provided on the upper wall of the swing groove 1313 near the sliding box 171. A metal block, which can be an iron block, is provided on the upper end of the swing plate 1312. A second oil hole 134, which is connected to the first oil hole, is provided on the swing groove 1313 near the sliding box 171. A third oil hole is provided on the drive shaft 142. A fourth oil hole 135 is provided on the swing groove 1313 away from the sliding box 171. The fourth oil hole 135 is connected to the arc-shaped groove 1311. When the drive wheel 141 is not in contact with the cable 4, the magnetic attractor 137 will attract the metal block, and the swing plate 1312 will swing in the swing groove 1313, causing the side of the drive wheel 141 near the rotating housing 11 to tilt, making the entire drive wheel 141 tilted. At this time, the third oil hole is not connected to the second oil hole 134, and the third oil hole is not connected to the fourth oil hole 135, so the hydraulic oil in the hydraulic chamber is not... The oil will be supplied into the arc groove 1311, and the second arc plate 132 will not come out of the arc groove 1311. When the cable 4 contacts the drive wheel 141 and moves to the concave part of the drive wheel 141, it will force the drive wheel 141 to swing to a horizontal position. At the same time, the swing plate 1312 swings in the swing groove 1313, and the magnetic suction component 137 disengages from the metal block. At this time, the second oil hole 134, the third oil hole and the fourth oil hole 135 are connected, and the hydraulic component 185 can move. By pushing the push plate 1851, the push plate 1851 moves towards the rotating shell 11, and the volume of the second hydraulic chamber 187 decreases, so that the hydraulic oil in the first hydraulic chamber 186 can enter the arc groove 1311 through the first oil hole, the second oil hole 134, the third oil hole and the fourth oil hole 135. The hydraulic oil causes the second arc plate 132 to slide out of the arc groove 1311 and cooperate with the first arc plate 131 to form a complete ring and wrap the cable 4 inside. It should be noted that even if the drive wheel 141 shakes while rotating, it will not affect the connection between the second oil hole 134, the third oil hole, and the fourth oil hole 135.

[0038] It is important to understand that by configuring the drive wheel 141 as a swingable structure, the hydraulic oil in the first hydraulic chamber 186 cannot be discharged when the drive wheel 141 is not in contact with the cable 4. Only when the drive wheel 141 contacts the cable 4 can the hydraulic oil be discharged normally into the arc groove 1311. The first arc plate 131 slides to the outside of the arc groove 1311 under the action of the hydraulic oil. It works in conjunction with the first arc plate 131 to wrap the cable 4, preventing the second arc plate 132 from sliding outside the arc groove 1311 when the cable 4 is not in contact with the drive wheel 141. The linkage effect is better.

[0039] Specifically, such as Figure 10As shown, the second driving component includes a fourth rotating component, a fourth driving wheel 143, and a fourth external gear ring 144. The fourth rotating component can be a rotating motor, and it is installed inside the driving wheel 141 to further reduce the installation volume. The output shaft of the fourth rotating component passes through the outer wall of the driving wheel 141 and is connected to the fourth driving wheel 143. The fourth external gear ring 144 is sleeved on the driving shaft 142. The fourth driving wheel 143 meshes with the fourth external gear ring 144, so that the fourth rotating component can realize the rotation of the driving wheel 141 through the cooperation of the fourth driving wheel 143 and the fourth external gear ring 144, thereby driving the entire positioning hook 13 to move along the cable 4.

[0040] Before the positioning hook 13 wraps around the cable 4, it needs to move from the outside of the cable 4 towards the cable 4 under the drive of the first driving member 172 (first positioning drive group 17). Although the distance the positioning hook 13 moves can be controlled by the first driving member 172, in order to further ensure that the drive wheel 141 can abut against the cable 4, a pressure detection element 133 is provided on the upper groove wall of the swing groove 1313 away from the sliding box 171. The pressure detection element 133 can be a pressure sensor. The side wall of the concave part of the drive wheel 141 does not contact the cable 4. The drive wheel 141 is set at an angle. The swing plate 1312 in the swing groove 1313 away from the sliding box 171 is located in the lower half of the swing groove 1313. The swing plate 1312 in the swing groove 1313 near the sliding box 171 is attracted by the magnetic member 137. Located in the upper half of the swing groove 1313, when the side wall of the recess of the drive wheel 141 contacts the cable 4, the force of the cable 4 causes the drive wheel 141 to swing from an inclined state to a horizontal state. The swing plate 1312 in the swing groove 1313, which is away from the sliding box 171, is located in the middle of the swing groove 1313, and the swing plate 1312 abuts against the pressure detection element 133, so that the pressure detection element 133 has a pressure signal. At this time, the feedback is sent to the first drive element 172 and the hydraulic element 185. The first drive element 172 stops working, and the hydraulic element 185 drives the push plate 1851 to move towards the rotating shell 11. The volume of the second hydraulic chamber 187 becomes smaller, so that the hydraulic oil in the first hydraulic chamber 186 enters the arc groove 1311. The second arc plate 132 slides out of the arc groove 1311 and completely wraps the cable 4 inside.

[0041] It should be noted that the inspection device in this embodiment must include a controller, in which the first drive component 172, the second drive component, the first rotating component 161, the second rotating component 181, the third rotating component 151, the fourth rotating component, and the hydraulic component 185 are all electrically connected to the controller and are uniformly coordinated and used through the controller.

[0042] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A high-voltage cable automatic inspection device, characterized in that, The first and second inspection assemblies each comprise a rotating shell, and a connecting rod is connected between the two rotating shells; The first and second inspection assemblies each further comprise: An adjusting box is arranged outside the rotating shell; A positioning hook is arranged on the side of the two adjusting boxes away from the rotating shell, for covering and detecting the cable; A turnover driving group is arranged in the adjusting box, and an output end of the turnover driving group is connected with the rotating shell, so that the rotating shell rotates relative to the adjusting box, and drives the connecting rod to turn over to a required position, so that the first and second inspection assemblies turn over the spacer rod; A first positioning driving group is arranged in the adjusting box, and a driving end of the first positioning driving group is in transmission connection with the positioning hook, so that the positioning hook is close to or away from the adjusting box during the turnover of the connecting rod, so as to adjust the distance between the positioning hook and the cable; A second positioning driving group is arranged in the adjusting box, so that the positioning hook is towards and wraps the cable during normal inspection of the first and second inspection assemblies, or the positioning hook is switched between turning towards and wrapping the cable and turning away from the cable and unwrapping the cable during the turnover of the connecting rod; A moving assembly is arranged at the positioning hook, so that the positioning hook moves relative to the cable after the positioning hook wraps the cable.

2. The patrol device according to claim 1, characterized by The inspection device further comprises an adjusting member arranged in one of the rotating shells, the adjusting member comprises a third rotating member, a third driving wheel and a third external gear ring, the third driving wheel is arranged on an output shaft of the third rotating member, the third external gear ring is arranged on the outer circumferential side of the connecting rod, the third driving wheel is in meshing connection with the third external gear ring, and the connecting rod is provided with a guide groove along the axial direction, and the inner side wall of the third external gear ring is provided with a guide block, and the guide block is arranged in the guide groove. The connecting rod is in threaded connection with the rotating shell in the first and second inspection assemblies.

3. The patrol device according to claim 1, characterized by The turnover driving group comprises a first rotating member, a first main gear and a first internal gear ring; The first rotating member is fixedly arranged on the outer side wall of the adjusting box, the first main gear is arranged on an output shaft of the first rotating member, and the first internal gear ring is arranged on the end face of the rotating shell close to the adjusting box, and the first main gear is in meshing connection with the first internal gear ring.

4. The patrol device according to claim 1, characterized by The first positioning driving group comprises a sliding box and a first driving member, and the second positioning driving group is arranged in the sliding box; The sliding box is slidingly arranged in the adjusting box, the first driving member is fixedly arranged in the sliding box, and a driving end of the first driving member penetrates out of the sliding box and is connected with the inner side wall of the adjusting box, so as to drive the sliding box and the positioning hook to be close to or away from the rotating shell.

5. The patrol device according to claim 4, characterized in that, The second positioning driving group comprises a second rotating member, a fixed shaft, a second driving wheel and a second external gear ring; The second rotating member is fixedly arranged in the sliding box, and part of the fixed shaft is rotatably arranged in the sliding box, penetrates out of the sliding box and is fixedly connected with the positioning hook, the second driving wheel is arranged at the output end of the second rotating member, and the second outer gear ring is arranged in the adjusting box and fixedly sleeved on the outer circumferential side of the fixed shaft.

6. The patrol device according to claim 5, wherein The positioning hook comprises a first arc-shaped plate and a second arc-shaped plate, and the inner side walls of the first arc-shaped plate and the second arc-shaped plate are provided with detection members; The end of the first arc-shaped plate close to the adjusting box is fixedly connected with the fixed shaft, the end of the first arc-shaped plate away from the adjusting box is provided with an arc-shaped slot, the second arc-shaped plate is sealingly and slidably arranged in the arc-shaped slot, and the bottom of the arc-shaped slot is also provided with an elastic rope connected with the second arc-shaped plate; The end face of the sliding box close to the rotating shell is formed with a first hydraulic cavity together with the inner side wall of the adjusting box, the first hydraulic cavity contains hydraulic oil, the second positioning driving assembly further comprises a hydraulic member, the sliding box is provided with a mounting cavity, the hydraulic member is arranged in the mounting cavity, the hydraulic member has a push plate, the push plate is sealingly and slidably arranged in the mounting cavity, the end face of the push plate away from the hydraulic member is formed with a second hydraulic cavity together with the side wall of the mounting cavity, and the second hydraulic cavity is in communication with the first hydraulic cavity; The sliding box is provided with an oil guide shaft, one end of the oil guide shaft is in communication with the first hydraulic cavity, the other end of the oil guide shaft is rotatably connected with the fixed shaft, and the oil guide shaft is in communication with the arc-shaped slot through the first oil hole arranged in the fixed shaft.

7. The patrol device according to claim 6, characterized in that, The moving assembly comprises a driving wheel, a driving shaft and a second driving member, the driving wheel has a recess portion abutting against the cable; The end of the first arc-shaped plate close to the adjusting box is provided with a mounting hole, the driving shaft is arranged in the mounting hole, the driving wheel is arranged on the driving shaft, and the second driving member is in transmission connection with the driving shaft, so that the driving wheel rotates and drives the positioning hook to move along the cable.

8. The patrol device according to claim 7, characterized in that, The driving wheel is rotatably arranged on the driving shaft, the arc-shaped swing slots are arranged on the two hole walls of the mounting hole in the axial direction of the driving shaft, and the two ends of the driving shaft are provided with swing plates, and the two swing plates are sealingly and slidably arranged in the two swing slots in the vertical direction respectively; The upper groove wall of the swing slot close to the sliding box is provided with a magnetic member, and the upper end of the swing plate is provided with a metal block corresponding to the magnetic member; The swing slot close to the sliding box is provided with a second oil hole, the second oil hole is in communication with the first oil hole, the driving shaft is provided with a third oil hole, the swing slot away from the sliding box is provided with a fourth oil hole, and the fourth oil hole is in communication with the arc-shaped slot; When the recess portion of the driving wheel is not abutting against the cable, the magnetic member attracts the metal block, the swing plate is in an inclined state, and the second oil hole, the third oil hole and the fourth oil hole are not in communication. When the recess of the driving wheel is in abutment with the cable, the driving wheel is in a horizontal position, so that the second oil hole, the third oil hole and the fourth oil hole are communicated, the hydraulic member drives the push plate to make the second hydraulic cavity smaller, the hydraulic oil enters the arc-shaped groove, the second arc-shaped plate is driven to slide out and cooperates with the first arc-shaped plate to wrap the cable.

9. The patrol device according to claim 7, characterized in that, The second driving member comprises a fourth rotating member, a fourth driving wheel and a fourth external gear ring, the fourth rotating member is arranged in the driving wheel, the output shaft of the fourth rotating member penetrates the outer side wall of the driving wheel and is connected with the fourth driving wheel, the fourth external gear ring is sleeved on the driving shaft, and the fourth driving wheel is in mesh with the fourth external gear ring.

10. The patrol device according to claim 8, wherein The upper groove wall of the swing groove away from the sliding box is provided with a pressure detection member, so that when the recess side wall of the driving wheel is in contact with the cable, the swing plate is in abutment with the pressure detection member, the first driving member stops working, the hydraulic member drives the push plate to move towards the rotating shell, and the volume of the second hydraulic cavity becomes smaller.

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